Troubleshooting - Payne PA13A/ PW3CA Installation Instructions Manual

For ease of service, the systems are equipped with diagnostic code
display LEDs on both the indoor and outdoor units. The outdoor
diagnostic display is an LED on the outdoor unit board and is
limited to very few errors. However, it is useful in identifying
special error codes like a failure of the outdoor coil sensor on heat
pumps. The indoor diagnostic display is a combination of flashing
INDOOR UNIT DIAGNOSTIC GUIDES
Operation Timer
Lamp Lamp
X
l
On
l
X
l
On
l
l l
Operation Timer Defrosting
Lamp Lamp
l l
X
l
X
l
X X
X X
X
l
X X
l = Flashing
X = Off
For additional diagnostic information, refer to the Service Manual.
Infrared signal receptor
OPERATION AUTO
ECON
HP Model size 009
* PRE- -DEF light will illuminate when the unit is running in FAN ONLY mode on Cooling Only units.
Note: Cooling only units have same LED lights but without PRE- -DEF print.
OUTDOOR UNIT DIAGNOSTIC GUIDES
Flashing
Times after 2
Second Off
5 Communication failure
2 Condenser temperature sensor failure
1 Other indoor failure
If the unit is operating normally, the LED light on the outdoor board is lit continuously. If there is a failure, the LED light will flash a specific
number of times. Refer to the Outdoor Unit Diagnostic table above to determine failure.

TROUBLESHOOTING

9K & 12K Units
Indoor fan speed has been out of control for over 1 minute
Indoor room temp. or evaporator sensor is open circuit or short circuited
Compressor over--- current protection has been activated four times
EEROM error
Indoor unit communication error
18K & 24K Units
Auto
Lamp Lamp
Over--- current protection of the compressor occurs four times
l l
X X Indoor room temp. sensor is open circuit or short circuited
X X Temp. sensor on indoor evaporator is open circuit or short circuited
Temp. sensor on outdoor condenser is open circuit or short circuited (not cooling
X
l
only modes)
Outdoor unit protects (outdoor temp. sensor, phase order, etc.)
l l
X EEROM error
l
X Indoor unit communication error
l
TIMER OPERATION
TIMER
PRE-DEF
PRE-DEF
A08486
Fig. 21 --- LED Display Panel
LEDs on the display panel or the front of the unit. If possible,
always check the diagnostic codes displayed on the indoor unit
first.
The diagnostic codes for the indoor and outdoor units are listed in
the tables below.
Failure Mode
Failure Mode
Infrared signal receptor
A07544
HP Model size 012
Failure Mode
13
(Illuminates simultaneously)
TIMER
AUTO PRE.-DEF* OPERATION
A08483
HP Model size 018- - 024
Diagnostic
Chart
4 or 6
2
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